The Liberator is OSE's automatic, high throughput Compressed Earth Brick Press. It is named The Liberator because it is intended to free people from the single highest cost of living - housing. See Cost of Living and GVCS Naming Convention.
- Block is plain block, not interlocking. Please see discussion on Interlocking_bricks
- Version 17.08 is our most current model. See CEB Press Genealogy for past versions.
- Open source hardware, controller, and software (CC-BY-SA 4.0, GPLv3)
- Controller includes automatic pressing and manual mode
- Does NOT come with a power source - it is powered by a hydraulic power source, such as by our Power Cube or a - tractor hydraulic take-off.
- Full size bricks are 4"x6"x12", plain flat-faced bricks
- Brick height is adjustable from 2"-4"
- Brick dimensional variations: +/- 1/16". This assumes uniform soil. Soil uniformity will determine height uniformity of brick.
- 6 full-sized bricks per minute at 14 gallon per minute hydraulic flow. Brick pressing rate will increase with a higher hydraulic flow, up to the maximum rated flow of the hydraulic solenoid. Hydraulic solenoid valve is rated for a maximum of 30 gpm fluid flow at 3000PSI.
- Fuel consumption with Power Cube running at 14 gpm fluid flow - about 1 gallon per hour
- System hydraulic pressure - 2300 psi
- Comes with hydraulic quick couplers ready to be connected to a power source
- Weight - 1700 lb
- Moving: brick press is moved with forks. Footprint (with legs in the inner position) allows machine to be placed in the bed of a 3/4 ton pickup. It has adjustable legs for uneven terrain. Machine can be moved around on a trailer (not included)
- Material cost: $3000-$6500 depending on suppliers; manual machine (without hydraulic solenoid, machine costs $1000 less in materials. Production cost for a full kit: US$5000 above the bill of materials/supplies/consumables cost, paid by the buyer. 3'x6' grate for loading the machine with a tractor. Includes soil deflectors
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